Dishwashing machine



M. M. UTTERBACK. DlSHWASHl-NG MACHINE.

APPLICATION FILED SEPT. 17

Patented Apr. 25, 1922 2 SHEETSSHEET I.

IN V EN TOR.

A TTORNEYS. i

n n u'i m M m m d M. M. UTTERBACK. DISHWASHING MACHINiE. APPLICATIONFILED SEPT. I7 1921 I 25,1922. flo I 2 shins- H IN V EN TOR. Ml/rrg/ranclr UNITED STATES eAr N'o FFICE.-

MELVILLE M. UTTERIBACK, OF CHELAN, WASHINGTON;

DISHWASHING MACHINE.

-T 0 all whom it may concern:

Be it known that I, MELVILLE M. U'I'IER- BACK, a citizen of the UnitedStates, and resident of Chelan, county of Chelan, and State ofWashington, have invented a new and useful Dishwashing Machine, of whichthe following is a specification.

The present invention relates to improvements in dish washing machinesand its object is to provide a machine of, the character described thatis particularly efficient in washing dishes, needs only a limited supplyof water, works with soapywater as well as with clear Water, isexceptionally well arranged so that the water strikes the dishesdirectly without missing any portions of the same, and at the same timeis simple in construction and can be used as akitchen table, when notused as a washing machine.

The principles involved in my invention are embodied in the preferredwashing machine shown in the accompanying drawing, in which Figure 1 isa perspective view'of my washing machine; Figure 2 a side view of thesame, a portion of the front being broken away to disclose the interior;Fig ure 3 an enlarged detail view of a belt tightener; Figure 1 a crosssection through a tray along line 4-4 of Figure 5; Figure 5 a top planview of the tray;"Figure 6 a perspective view of a spoon holder, andFigure 7 a side view of a drum used'in my device for agitating thewater.

In detail the washing machine (1) coinprises a preferably rectangularbox (2) having two sides (3), two end pieces (4), a horizontal top (6)and a sloping bottom (7). A portion (8) of the top is stationary andserves as support for the motor (9), while another portion (11) ishingedly connected to one of the sides, as shown at (12).

The sloping bottom provides a deep portion (14) in the box, which holdsthe agitating means for the water, and a shallow portion (16) adapted toreceive the dishes. The principal part 'of the latter portion is thetray (17). whichis shown in detail in Figures 4 and and is adapted toreceive the dishes and to be slid into the box, until it is stopped bythe stop (18). This tray is an open. rather flat box. screened on thesides, as shown at (19), and provided on top with a plurality of wires(21) crossing the box diagonally. These wires are provided for thesupport of the dishes which are placed I Specification of LettersPatent. Patented Apr. 25 1922 Application filed September 17, 1921.Serial No. 501,504.

between the wires on edge and prevented from rolling by a plurality ofcross wires (22). It will be seen'that when the tray is placed insidethe box, dishes is disposed in such'a manner as to present a. slanting.surface to a stream of water coming from the agitator. This tray isintended to take the plate shaped dishes, while for the cups I provide aplurality of hooks (23) secured'in one or both of the sides of the box.One corner (24) of the tray is left unoccupied by diagonal wires andprovided with a screen at the bottom. This portion is reserved for theknives and forks, while for the spoons I provide-a special cylindricalreceptacle (27) having as its principal features a base (28) and avertical, cylinder-shaped 'body of wire netting for the support of thespoons. This holder is placed in any convenient place where it will bestruck by the water. The tray itself ispreferably made suflicien'tlyshort to allow of a generous space rearwardly of the same for thereception of larger utensils as pots and pans.

As agitating means I use a revolving drum (31) provided with a pluralityof fans, preferably three. The drum is cylindrical in form and isslidably secured on the shaft (33) supported in the sides of the box. Itis prevented from rotating on the shaft by the bolts extendingdiametrically through the shaft and the cylinder and secured by nuts(36). It will be noted that the fans do not extend from the drum at thesame angles, one of them, (37), extending radially. the second one,(38), at a small angle to the radius, and the third one, (39), at alarger angle to the radius. This arrangement is selected for the purposeof insuring a more thorough distribution of the water over the dishes,it being well understood that each of these fans will throw the water ina different direction and cause the same to strike the dishes at a.different angle.

.The cylinder is partly submerged in water as shown in Figure 2 and itsrear portion is surrounded by a shield (41), so that when the drum isrotated clockwise the fans will dip into the water and carry along aportion of the same between the drum and the shield. until after passingthe upper end of the shield the water is released and free to each oneof the quence of which it will be hurled at the dishes, rinse and cleanthe same, collect at the bottom, and due to the slope of the bottomreturn to the agitator to be a ain picked up by the fans. A specialcatch (42) is provided for the solid substances washed ofi the dishes,as tea or cofl'ee grounds or remain ders of food adheringto the plates.The catch is in direct communication with the outlet (43) of the Washingmachine, which is provided at the bottom near the lower end of the box.A trap is provided in the outlet to prevent gases from rising throughthe same, a cap (46) of the usual form is provided, thus allowing thesame to be drained. The outlet is controlled by a valve (47) which canbe operated by means of the rod (48) from the top of the washingmachine. A float (49) carrying a vertical rod (51) serves to indicatethe level of the water in the washing machine. The water inlet is shownat (50).

The drum is rotated by means of the motor (9) secured on top of thewashing machine, which engages through the belt (52) the Wheel (53)keyed to the shaft (33) supporting the drum. In the machine I am usingnow the cylinder makes about 500 revolutions per minute and I prefer toprovide special tightening means for the belt, as shown in detail inFigure 3. This means comprises an idler wheel (60) mounted on thetransverse end (56) of the long-itulinal shaft (57) so as tofrictionally engage the outside of the belt (52). The shaft (57) isslidably mounted in a bracket (58) secured to the washing machine andcaused by the spring (59) to draw the belt inwardly, thereby tighteningthe same. 7

In operation the dishes are assembled on the tray in the mannerdescribed, the cups suspended, the forks and knives placed on the.screen, the spoonholder placed in a convenient spot, the pots and pansassembled rearwardly of the tray, hot water poured into the box, soap orwashing powder supplied, and the motor started. The fans then throw thewater violently against the-dishes from different .directions and efiecta thorough cleaning of all the contents of the box, the: water returningover the bottom of the box so as not to-in any wa interfere with thewater thrown by the ans and being agitated continuously. The solidsubstances washed from the dishes assemble in the catch (42) withoutfurther partaking of the agitation. water is drained ofi, and cleanwater admitted to rinse the dishes.

The motor can be easily removed at any time and used for other purposes.

I claim:

A dishwashing machine comprising a water holding'receptacle having aslanting bottom, means for securing dishes in the receptacle, a largedrum adjacent one end of the receptacle having a plurality of straightfans emanating at different angles from its periphery for throwing thewater from different directions into contact with the dishes, and acurved shield partially surrounding said drum for causing the water tobe'discharged from the upper portion thereof, said shield providingadjacent its lower portion an extended lip .in spaced relation to thebottom of the receptacle to provide a trap for solid particles and adischarge outlet connected to said trap.

MELVILLE M. UTTERBACK.

When the dishes are clean the

